chore(helm): update image docker.io/josh5/steam-headless digest to 1c028fa (#32821)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/josh5/steam-headless | digest | `bffdeb6` -> `1c028fa` |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4xODIuNCIsInVwZGF0ZWRJblZlciI6IjM5LjE4Mi40IiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

charts/stable/steam-headless/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/steam-headless
   - https://hub.docker.com/r/josh5/steam-headless
 type: application
-version: 5.5.5
+version: 5.5.6

charts/stable/steam-headless/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: docker.io/josh5/steam-headless
-  tag: latest@sha256:bffdeb676c854bb5f610c444af399e777cac547158f79f1ec27f9e8df4d49909
+  tag: latest@sha256:1c028fa228d258243441e41b2e0fe6fa6dc58669d77393442ec3cf0ea2bbdd30
   pullPolicy: IfNotPresent
 
 securityContext: